The distribution limits between this species and O. amazonicus need to be reviewed (B. Patterson pers. comm.). This treatment includes O. juliacae which may be a distinct species (H. Zeballos and B. Patterson pers. comm.).

Justification:
This species is listed as Least Concern in view of its wide distribution, tolerance of a broad range of habitats, presumed large population, and because it is unlikely to be declining fast enough to qualify for listing in a more threatened category.

This species occurs in the south central Peru to northern Bolivia, as far south as Cochabamba and east into west Santa Cruz Departments (Anderson, 1997; Musser and Carleton, 2005). It has an elevational range of around 400 to 2,500 m in Bolivia, and 500 up to 1,900 m in Peru.

It ranges from lowland cerrado and mixed forest, into Yungas and montane forest and regrowth following logging. It is present in savannas, grassland and fields, in primary and secondary habitat including disturbed areas.